Gen 8:13 | KD | STEP | Noah waited some time, and then, on the first day of the first month, in the 601st year of his life, removed the covering from the ark, that he might obtain a freer prospect over the earth. He could see that the surface of the earth was dry; but it was not till the 27th day of the second month, 57 days, therefore, after the removal of the roof, that the earth was completely dried up. Then God commanded him to leave the ark with his family and all the animals; and so far as the latter were concerned, He renewed the blessing of the creation ( cf. ). As the flood commenced on the 17th of the second month of the 600th year of Noah’s life, and ended on the 27th of the second month of the 601st year, it lasted a year and ten days; but whether a solar year of 360 of 365 days, or a lunar year of 352, is doubtful. The former is the more probable, as the first five months are said to have consisted of 150 days, which suits the solar year better than the lunar. The question cannot be decided with certainty, because we neither know the number of days between the 17th of the seventh month and the 1st of the tenth month, nor the interval between the sending out of the dove and the 1st day of the first month of the 601st year.

‏ Genesis 8:13

Noah waited some time, and then, on the first day of the first month, in the 601st year of his life, removed the covering from the ark, that he might obtain a freer prospect over the earth. He could see that the surface of the earth was dry; but it was not till the 27th day of the second month, 57 days, therefore, after the removal of the roof, that the earth was completely dried up. Then God commanded him to leave the ark with his family and all the animals; and so far as the latter were concerned, He renewed the blessing of the creation (Gen 8:17 cf. Gen 1:22). As the flood commenced on the 17th of the second month of the 600th year of Noah’s life, and ended on the 27th of the second month of the 601st year, it lasted a year and ten days; but whether a solar year of 360 of 365 days, or a lunar year of 352, is doubtful. The former is the more probable, as the first five months are said to have consisted of 150 days, which suits the solar year better than the lunar. The question cannot be decided with certainty, because we neither know the number of days between the 17th of the seventh month and the 1st of the tenth month, nor the interval between the sending out of the dove and the 1st day of the first month of the 601st year.